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Arnaldoa

versão impressa ISSN 1815-8242versão On-line ISSN 2413-3299

Resumo

ALAYA, Bernabé Salomón Luis et al. Effect of different inoculum quantities of Rhizophagus irregularis on the mycorrhization percentage and growth in Zea mays L. var. canteño (Poaceae) under greenhouse conditions. Arnaldoa [online]. 2021, vol.28, n.3, pp.651-674.  Epub 31-Dez-2021. ISSN 1815-8242.  http://dx.doi.org/10.22497/arnaldoa.283.28311.

Zea mays L. var. canteño (Poaceae) “maíz morado” has a high nutricional quality and is grown in nutrient-deficient soils. In these conditions, microorganisms such as Rhizophagus irregularis act as fertilizers. The objective of this research was to determine the growth and mycorrhization of purple corn inoculated with R. irregularis. Plants were grown under greenhouse conditions using sand and moss as substrate and La Molina nutrient solution. Treatments were 0; 1; 2; 3,5; 5 and 8 g of R. irregularis inoculum. Shoot length, root length and mycorrhization were evaluated at 28, 35 and 42 days of treatment. It was found that inoculation with different inoculum quantities induced significant differences in mycorrhization, shoot length and root length. Treatment with 2g increased mycorrhization, shoot length and root length at 42 days. Correlation analysis demonstrated correlation between inoculum quantity, mycorrhization and root length. It is concluded that R. irregularis produces an increase in mycorrhization percentage, shoot length and root length in purple corn.

Palavras-chave : Rhizophagus irregularis; Zea mays L. var. canteño; purple corn; plant growth; mycorrhization.

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